CN113007490A

CN113007490A - Liquid switch valve structure and use method thereof

Info

Publication number: CN113007490A
Application number: CN202110419433.0A
Authority: CN
Inventors: 尹红绕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-06-22

Abstract

The invention discloses a liquid switch valve structure and a use method thereof, wherein the liquid switch valve structure comprises the following steps: the left end and the right end of the valve body shell are respectively communicated and provided with a water outlet pipeline and a water inlet pipeline through flanges, and meanwhile, the right inner wall of the water inlet pipeline is clamped and provided with a filter screen; the switch valve body, the switch valve body rotates and installs in the inside of valve body shell, and the middle part fixedly connected with dwang of switch valve body, simultaneously closely install sealed piece between valve body shell and the switch valve body. This liquid switch valve structure and application method thereof, the liquid filtration treatment in the pipeline is convenient, avoids the liquid that flows to cause the corruption to the valve, influences life, installs the pressure release pipeline simultaneously in liquid pipeline, when pipeline internal pressure was too big, conveniently opens liquid switch valve automatically and carries out the pressure release, avoids damaging liquid switch valve to and conveniently carry out seal installation to liquid switch valve, avoid appearing the condition of liquid leakage, avoid influencing the use.

Description

Liquid switch valve structure and use method thereof

Technical Field

The invention relates to the technical field of liquid switch valves, in particular to a liquid switch valve structure and a using method thereof.

Background

At present, in building device, shoes clothes field and other industrial fields, often can be used to spout gluey, spray water or spray other liquid medium, be used for attached to the surface at the processing article, to different products, its attached area that sprays, attached medium thickness, spray frequency all have the difference, need liquid medium ooff valve to control, because the frequency that liquid sprayed usually is higher, to the life of liquid medium ooff valve, fatigue test performance all has high requirement, avoid liquid medium ooff valve frequent damage.

With reference to the grant publication No. CN105972229B, a liquid pipeline stop valve structure and a use method thereof have the advantages of realizing control of a liquid pipeline with larger pressure by rotating a valve rod with smaller force, and meanwhile, the structure is simple and reasonable, and can be miniaturized, thereby effectively avoiding the problems of overlarge volume and complex structure of the traditional stop valve, effectively avoiding the problem that the valve rod is stressed when the liquid pipeline is opened and closed and being convenient to control, and prolonging the service life of the stop valve;

however, the above-mentioned structure and method for closing the liquid line stop valve have the following disadvantages when in use:

1. the liquid in the pipeline is not convenient to filter, and the flowing liquid is easy to corrode the valve, so that the service life is influenced;

2. a pressure relief pipeline is not arranged in the liquid pipeline, so that when the pressure in the pipeline is too high, the liquid switch valve is inconvenient to automatically open for pressure relief, and the liquid switch valve is easy to damage;

3. meanwhile, the liquid switch valve is not convenient to be installed in a sealing way, so that the liquid leakage is easy to occur, and the use is influenced;

to this end, we propose a liquid switch valve structure and a method of using the same to solve the above problems.

Disclosure of Invention

The invention aims to provide a liquid switch valve structure and a using method thereof, and aims to solve the problems that the existing liquid switch valve structure proposed in the background art is inconvenient for filtering liquid in a pipeline, the flowing liquid is easy to corrode a valve and influence the service life, meanwhile, a pressure relief pipeline is not arranged in the liquid pipeline, when the internal pressure of the pipeline is overlarge, the liquid switch valve is inconvenient to automatically open for pressure relief, the liquid switch valve is easy to damage, the liquid switch valve is inconvenient to seal and install, the liquid leakage condition is easy to occur, and the use is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a liquid switching valve structure comprising:

the left end and the right end of the valve body shell are respectively communicated and provided with a water outlet pipeline and a water inlet pipeline through flanges, and meanwhile, the right inner wall of the water inlet pipeline is clamped and provided with a filter screen;

the switch valve body is rotatably arranged inside the valve body shell, the middle part of the switch valve body is fixedly connected with a rotating rod, and meanwhile, a sealing block is tightly arranged between the valve body shell and the switch valve body;

the electric telescopic handle is installed and connected inside the pressure relief connecting block installed at the lower end of the water inlet pipeline in a communicated mode, and meanwhile the pressure sensor is connected to the inside of the water inlet pipeline in an installing mode.

Preferably, the upper end of the rotating rod and the mounting shaft form a disassembly structure through a bolt, and the outer surface of the upper end of the mounting shaft is integrally welded and connected with a worm wheel;

the front side meshing of worm wheel is connected with the worm, and the worm constitutes revolution mechanic on the installation shell, simultaneously the dwang passes through the worm wheel and constitutes revolution mechanic on the valve body shell.

Preferably, the surface cover of dwang is equipped with the installation piece, and installs the piece and pass through between magnet piece and the valve body shell and be connected through magnetism and fix mutually, simultaneously the up end fixedly connected with gag lever post of installation piece, the lower extreme fixedly connected with sealing washer of installation piece.

Preferably, the left side and the right side of the lower end of the mounting shaft are fixedly connected with stop levers, the sum of the diameter sizes of the cross sections of the single stop levers and the mounting shaft is larger than the size of the distance between the single stop levers, and meanwhile, the stop levers intersect with the stop levers through the rotating track of the mounting shaft.

Preferably, the installation shell is a hollow cylindrical structure, the inner wall of the lower end of the installation shell is attached to the outer wall of the upper end of the valve body shell, meanwhile, the valve body shell and the installation shell are detached and installed through bolts, and the outer surface of the lower end of the installation shell is provided with installation holes at equal angles.

Preferably, the upper end and the lower end of the pressure relief connecting block are respectively communicated with a water inlet pipeline and a pressure relief pipeline, the pressure relief connecting block is of a hollow rectangular structure, and the water inlet pipeline, the pressure relief connecting block and the pressure relief pipeline are arranged in a T shape;

the inner wall of the pressure relief connecting block is connected with a pressure relief device, and the pressure relief device comprises a fixed sliding rod, a limiting spring and a sealing plate.

Preferably, the fixed sliding rod is fixedly installed on the inner wall of the pressure relief connecting block, the fixed sliding rod is of a semi-annular structure, a limiting spring is sleeved on the outer surface of the fixed sliding rod, and the sealing plate performs telescopic sliding motion on the fixed sliding rod through the limiting spring;

the sealing plate comprises a sealing plate body, a sealing plate and a clamping block, wherein the sealing plate body is fixedly connected with a waterproof mounting box at the lower end of the sealing plate body, a pressure sensor is fixedly mounted on the upper end face of the waterproof mounting box, an electric telescopic rod is fixedly connected with the lower end of the sealing plate body at the right side of the sealing plate body, and the output end of the electric telescopic rod is connected to the right side face of the waterproof mounting box through the clamping block.

Preferably, the vertical straight line of connection between the monomers of the sealing plate coincides with the vertical central axis of the pressure sensor, and meanwhile, the pressure sensor has waterproof performance in the pressure relief connecting block through the waterproof mounting box.

Preferably, the waterproof mounting box is not contacted with the sealing plate monomer on the right side, and the waterproof mounting box is connected and fixed with the left and right monomers of the sealing plate through the telescopic sliding motion of the clamping block and the electric telescopic rod.

The invention also provides a use method of the liquid switch valve, which comprises the following method steps:

the method comprises the following steps: firstly, a valve body shell is fixedly connected with a water outlet pipeline and a water inlet pipeline through flanges, and a filter screen is clamped and arranged at the right end of the water inlet pipeline and used for filtering impurities in liquid;

step two: the installation block is sleeved on the outer surface of the rotating rod, the installation block is magnetically connected and fixed with the valve body shell through the magnet block, and then the rotating rod is connected and fixed with the installation shaft through the bolt for replacing the installation block, so that leakage is avoided;

step three: the mounting shell is mounted and connected to the upper end face of the valve body shell through a bolt, when the valve body is used, the crank drives the worm to rotate, and the worm is meshed with the worm wheel to drive the rotating rod to rotate, so that the rotating angle of the valve body of the switch valve can be adjusted and controlled conveniently, and the valve body shell can be opened and closed;

step four: when the pressure that the inside liquid of valve body shell flows was too big, water pressure exerted pressure to pressure sensor, through central controller control electric telescopic handle's switch, the flexible fixture block of adjusting of electric telescopic handle to the closing plate of being convenient for overturns on fixed slide bar, is convenient for carry out the pressure release to liquid through the pressure release connecting block, avoids damaging the valve body shell, avoids influencing the use.

Compared with the prior art, the invention has the beneficial effects that: the liquid switch valve structure and the use method thereof facilitate the filtration treatment of liquid in the pipeline, avoid the corrosion of flowing liquid to the valve and influence the service life, and simultaneously install the pressure relief pipeline in the liquid pipeline, when the internal pressure of the pipeline is overlarge, the liquid switch valve is conveniently and automatically opened for pressure relief, the damage of the liquid switch valve is avoided, and the liquid switch valve is conveniently and hermetically installed, the liquid leakage condition is avoided, and the influence on the use is avoided;

1. the sealing block is installed and connected between the valve body shell and the switch valve body, so that a connecting gap between the valve body shell and the switch valve body can be conveniently sealed, leakage is avoided, meanwhile, a sealing ring is installed and connected at the lower end of the installation block, the gap at the connecting position of the switch valve body and the upper end of the valve body shell can be conveniently sealed, liquid leakage is avoided, meanwhile, a filter screen is installed at the right end of a water inlet pipeline in a clamping mode, impurities in liquid can be conveniently filtered, the switch valve body can be conveniently protected, and corrosion is avoided;

2. the worm wheel and the worm are in meshed connection, so that the worm wheel is driven to rotate when the worm rotates, the rotating angle of the valve body of the switch valve is adjusted and controlled conveniently, the limit is convenient, the phenomenon that the rotating angle is randomly deviated is avoided, the stable adjustment is convenient, and the adjustment and the control are convenient;

3. be equipped with closing plate and pressure sensor, pressure sensor monitors the pressure that produces when the liquid of closing plate upside flows, when making things convenient for pressure too big, extrudees spacing spring through the closing plate and slides on fixed slide bar, with liquid discharge to be convenient for protect the ooff valve body, avoid damaging, influence the use.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic top sectional view of the worm gear and worm connection of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the mounting block and the seal ring in front view according to the present invention;

FIG. 4 is a schematic view of the overall structure of the rotating lever according to the present invention;

FIG. 5 is a schematic view of the overall construction of the mounting housing of the present invention;

FIG. 6 is a schematic diagram of a cross-sectional front view of a pressure relief device according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 8 is a schematic view of the overall structure of the connection between the pressure relief connecting block and the pressure relief pipe according to the present invention;

fig. 9 is a schematic view of the working process of the present invention.

In the figure: 1. a valve body housing; 2. a water outlet pipeline; 3. a water inlet pipe; 4. a filter screen; 5. a switching valve body; 6. rotating the rod; 7. mounting blocks; 8. a limiting rod; 9. a magnet block; 10. a seal ring; 11. installing a shaft; 12. a stop lever; 13. a worm gear; 14. a worm; 15. a crank; 16. installing a shell; 17. mounting holes; 18. a pressure relief connecting block; 19. a pressure relief duct; 20. a pressure relief device; 2001. fixing the sliding rod; 2002. a limiting spring; 2003. a sealing plate; 21. an electric telescopic rod; 22. a clamping block; 23. a waterproof mounting box; 24. a pressure sensor; 25. and (6) sealing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a liquid switch valve structure comprises a valve body shell 1, a switch valve body 5 and an electric telescopic rod 21, wherein the left end and the right end of the valve body shell 1 are respectively communicated and provided with a water outlet pipeline 2 and a water inlet pipeline 3 through flanges, meanwhile, the right inner wall of the water inlet pipeline 3 is clamped and provided with a filter screen 4 for filtering liquid, so as to reduce or avoid corrosion to the switch valve body 5, the switch valve body 5 is rotatably arranged in the valve body shell 1, the middle part of the switch valve body 5 is fixedly connected with a rotating rod 6, meanwhile, a sealing block 25 is tightly arranged between the valve body shell 1 and the switch valve body 5 and used for sealing the switch valve body 5, so as to avoid leakage and facilitate use, the electric telescopic rod 21 is arranged and connected in a pressure relief connecting block 18 communicated and arranged at the lower end of the water inlet pipeline 3, and meanwhile, the inside of the water inlet pipeline 3, the pressure when convenient liquid to valve body shell 1 inside flows is monitored, avoids pressure too big, damages ooff valve body 5, influences the use.

When the liquid switch valve structure is used, firstly, the valve body shell 1 is fixedly connected with the water outlet pipeline 2 and the water inlet pipeline 3 through flanges, as shown in a combined figure 1, a combined figure 2, a combined figure 3, a combined figure 4 and a combined figure 5, as the outer surface of the rotating rod 6 is sleeved with the installation block 7, and the installation block 7 is fixed with the valve body shell 1 through the magnetic connection between the magnet block 9 and the installation block 7, the installation block 7 is used for installation and fixation of the installation block 7, the falling-off is avoided, the installation and the replacement are convenient, the use is convenient, meanwhile, the upper end surface of the installation block 7 is fixedly connected with the limiting rod 8, the lower end of the installation block 7 is fixedly connected with the sealing ring 10, the sealing ring 10 is convenient for sealing the rotating rod 6, the liquid leakage is avoided, the use is convenient, the upper end of the rotating rod 6 forms a disassembly structure with the installation shaft, when the worm 14 is rotated, the worm wheel 13 drives the switch valve body 5 to rotate, so that the opening and closing of the valve body shell 1 are adjusted, the use is convenient, the installation shell 16 is of a hollow cylindrical structure, the inner wall of the lower end of the installation shell 16 is attached to the outer wall of the upper end of the valve body shell 1, and meanwhile, the valve body shell 1 and the installation shell 16 are disassembled and installed by penetrating through the installation hole 17 through a bolt, so that the worm 14 is conveniently supported and connected, the disassembly and the replacement are convenient, and the maintenance treatment is convenient;

referring to fig. 2 and 3, the worm wheel 13 drives the stop lever 12 to rotate, and since the stop lever 12 is fixedly connected to both the left and right sides of the lower end of the mounting shaft 11, and the sum of the diameters of the cross sections of the single bodies of the stop lever 12 and the mounting shaft 11 is greater than the size of the space between the single bodies of the limit lever 8, the stop lever 12 intersects the limit lever 8 through the rotating track of the mounting shaft 11, and the stop lever 12 contacts the limit lever 8 to control the rotation angle of the worm wheel 13, thereby facilitating the control of the turning angle of the switch valve body 5, facilitating the opening and closing of the channel of the valve body housing 1, and avoiding the influence on the flow amount of liquid caused by the random rotation of the switch valve body 5 when;

referring to fig. 1, 6, 7 and 8, a filter screen 4 is mounted on an inlet pipe 3 in a clamping manner for filtering liquid flowing inside a valve body housing 1, when the liquid flows in the valve body housing 1, an outlet pipe 2 and the inlet pipe 3, the liquid applies a certain pressure to a pressure sensor 24, since a waterproof mounting box 23 is fixedly connected to the lower end of a left monomer of a sealing plate 2003, and the pressure sensor 24 is fixedly mounted on the upper end surface of the waterproof mounting box 23 for monitoring the pressure, an electric telescopic rod 21 is mounted and connected to the lower end of a right monomer of the sealing plate 2003, and the output end of the electric telescopic rod 21 is connected to the right side surface of the waterproof mounting box 23 in a clamping manner through a clamping block 22, the waterproof mounting box 23 is not in contact with the right monomer of the sealing plate 2003, and the waterproof mounting box 23 connects and fixes the left and right monomers of the sealing plate 2003 through the clamping block 22 and the telescopic sliding movement of the, when the pressure is too high, the pressure sensor 24 transmits a signal to the electric telescopic rod 21 through the central controller, the electric telescopic rod 21 contracts, the waterproof mounting box 23 is conveniently separated from the right side of the sealing plate 2003, the fixing sliding rod 2001 is fixedly mounted on the inner wall of the pressure relief connecting block 18, the fixed sliding rod 2001 is of a semi-annular structure, a limit spring 2002 is sleeved on the outer surface of the fixed sliding rod 2001, and the sealing plate 2003 is telescopically and slidably moved on the fixed slide bar 2001 by a limit spring 2002, so that under the action of the pressure of the liquid, downward pressure is applied to the sealing plate 2003, the sealing plate 2003 presses the stopper spring 2002, the sealing plate 2003 slides downward on the fixed slide bar 2001, therefore, liquid is conveniently discharged from the pressure relief connecting block 18 to the pressure relief pipeline 19, and the pressure relief device 20 plays a role in pressure relief, which is the whole process of using the liquid switch valve structure and the using method thereof.

The invention also provides a use method of the liquid switch valve, which comprises the following steps:

the method comprises the following steps: firstly, the water outlet pipeline 2 and the water inlet pipeline 3 are respectively fixedly connected with the left end and the right end of the valve body shell 1 through flanges, then the filter screen 4 is installed and connected at the right end of the water inlet pipeline 3 in a clamping installation mode, impurities in liquid are filtered, and the valve body 5 of the switch valve is prevented from being corroded, so that the service life is not influenced;

step two: then, the mounting block 7 is magnetically connected and fixed with the valve body shell 1 through the magnet block 9, so that the sealing ring 10 is conveniently sleeved and attached on the outer surface of the rotating rod 6, then the rotating rod 6 is fixedly connected with the mounting shaft 11 through a bolt for replacing the mounting block 7, and meanwhile, the leakage at the connecting part of the valve body shell 1 and the rotating rod 6 is also avoided;

step three: when the valve body shell is used, the crank handle 15 arranged on the shell 16 is rotated, so that the worm 14 is conveniently driven to rotate, the worm 14 is meshed with the worm wheel 13 to drive the rotating rod 6 to rotate, the rotating angle of the switch valve body 5 is conveniently adjusted and controlled, the phenomenon of random rotation is avoided, the valve body shell 1 is opened and closed, and the influence on the normal flowing use of liquid is avoided;

step four: when valve body shell 1, the pressure of the inside liquid flow of outlet conduit 2 and inlet channel 3 is too big, pressure sensor 24 will receive the signal of the pressure of liquid, convey control electric telescopic handle 21 through central controller, and then control electric telescopic handle 21's switch, electric telescopic handle 21 contracts fixture block 22, fixture block 22 and the separation of waterproof mounting box 23, thereby be convenient for the closing plate 2003 upset on fixed slide bar 2001, be convenient for carry out the pressure release to liquid through pressure release connecting block 18, avoid too big liquid pressure to damage valve body shell 1, avoid influencing the use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A liquid switch valve structure, its characterized in that: the method comprises the following steps:

the water inlet valve comprises a valve body shell (1), wherein the left end and the right end of the valve body shell (1) are respectively communicated and provided with a water outlet pipeline (2) and a water inlet pipeline (3) through flanges, and meanwhile, the right inner wall of the water inlet pipeline (3) is clamped and provided with a filter screen (4);

the switch valve body (5) is rotatably arranged inside the valve body shell (1), the middle part of the switch valve body (5) is fixedly connected with a rotating rod (6), and meanwhile, a sealing block (25) is tightly arranged between the valve body shell (1) and the switch valve body (5);

electric telescopic handle (21), electric telescopic handle (21) erection joint is in the inside of pressure release connecting block (18) of inlet channel (3) lower extreme intercommunication installation, simultaneously the internally mounted of inlet channel (3) is connected with pressure sensor (24).

2. A liquid switching valve structure according to claim 1, wherein: the upper end of the rotating rod (6) and the mounting shaft (11) form a disassembly structure through bolts, and the outer surface of the upper end of the mounting shaft (11) is integrally welded and connected with a worm wheel (13);

wherein, the front side meshing of worm wheel (13) is connected with worm (14), and worm (14) constitute revolution mechanic on installation shell (16), simultaneously dwang (6) constitute revolution mechanic on valve body shell (1) through worm wheel (13).

3. A liquid switching valve structure according to claim 1, wherein: the surface cover of dwang (6) is equipped with installation piece (7), and installs between piece (7) through magnet piece (9) and valve body shell (1) and connect through magnetism and fix mutually, simultaneously the up end fixedly connected with gag lever post (8) of installation piece (7), the lower extreme fixedly connected with sealing washer (10) of installation piece (7).

4. A liquid switching valve structure according to claim 2, wherein: the equal fixedly connected with pin (12) of the lower extreme left and right sides of installation axle (11), and the cross section diameter size sum of the monomer of pin (12) and installation axle (11) is greater than spacing size between gag lever post (8) monomer, simultaneously the orbit that pin (12) are rotatory through installation axle (11) intersects gag lever post (8).

5. A liquid switching valve structure according to claim 2, wherein: installation shell (16) are cavity cylinder structure, and the lower extreme inner wall of installation shell (16) and the laminating of the upper end outer wall of valve body shell (1) mutually, simultaneously dismantle the installation through the bolt between valve body shell (1) and the installation shell (16), the lower extreme surface equipartition angle of installation shell (16) is seted up and is connected with mounting hole (17).

6. A liquid switching valve structure according to claim 1, wherein: the upper end and the lower end of the pressure relief connecting block (18) are respectively communicated with a water inlet pipeline (3) and a pressure relief pipeline (19), the pressure relief connecting block (18) is of a hollow rectangular structure, and the water inlet pipeline (3), the pressure relief connecting block (18) and the pressure relief pipeline (19) are arranged in a T shape;

the inner wall of the pressure relief connecting block (18) is connected with a pressure relief device (20), and the pressure relief device (20) comprises a fixed sliding rod (2001), a limiting spring (2002) and a sealing plate (2003).

7. A liquid switching valve structure according to claim 6, wherein: the fixed sliding rod (2001) is fixedly arranged on the inner wall of the pressure relief connecting block (18), the fixed sliding rod (2001) is of a semi-annular structure, a limiting spring (2002) is sleeved on the outer surface of the fixed sliding rod (2001), and the sealing plate (2003) performs telescopic sliding movement on the fixed sliding rod (2001) through the limiting spring (2002);

the single lower extreme fixedly connected with waterproof mounting box (23) in left side of closing plate (2003), and the up end fixed mounting of waterproof mounting box (23) has pressure sensor (24), the single lower extreme erection joint in right side of closing plate (2003) has electric telescopic handle (21), and the output of electric telescopic handle (21) passes through fixture block (22) block and connects on the right flank of waterproof mounting box (23).

8. A liquid switching valve structure according to claim 6, wherein: the vertical straight line of connection between the monomers of the sealing plate (2003) coincides with the vertical central axis of the pressure sensor (24), and meanwhile, the pressure sensor (24) has waterproof performance in the pressure relief connecting block (18) through the waterproof mounting box (23).

9. A liquid switching valve structure according to claim 8, wherein: the waterproof mounting box (23) is not in contact with the sealing plate (2003) single body on the right side, and meanwhile, the waterproof mounting box (23) connects and fixes the left single body and the right single body of the sealing plate (2003) through the telescopic sliding motion of the clamping block (22) and the electric telescopic rod (21).

10. The use method of the liquid switch valve is characterized in that: the use method of the liquid switch valve comprises the following method steps:

the method comprises the following steps: firstly, a valve body shell (1) is fixedly connected with a water outlet pipeline (2) and a water inlet pipeline (3) through flanges, and a filter screen (4) is clamped and installed at the right end of the water inlet pipeline (3) and is used for filtering impurities in liquid;

step two: the installation block (7) is sleeved on the outer surface of the rotating rod (6), the installation block (7) is magnetically connected and fixed with the valve body shell (1) through the magnet block (9), and then the rotating rod (6) is connected and fixed with the installation shaft (11) through a bolt for replacing the installation block (7) so as to avoid leakage;

step three: the mounting shell (16) is mounted and connected to the upper end face of the valve body shell (1) through bolts, when the valve is used, the crank (15) drives the worm (14) to rotate, and the worm (14) is meshed with the worm wheel (13) to drive the rotating rod (6) to rotate, so that the rotating angle of the valve body (5) of the switch valve can be adjusted and controlled conveniently, and the valve body shell (1) is opened and closed;

step four: when the pressure that the inside liquid of valve body shell (1) flows was too big, water pressure exerted pressure to pressure sensor (24), through the switch of central controller control electric telescopic handle (21), electric telescopic handle (21) regulation fixture block (22) that stretches out and draws back to the closing plate (2003) of being convenient for overturn on fixed slide bar (2001) is convenient for carry out the pressure release to liquid through pressure release connecting block (18), avoids damaging valve body shell (1), avoids influencing the use.